Improvement in machines for graduating scale-beams



No. 121,420. PatentedNoy. 28,1871.

2 Sheets--vSheet 2,

No. 121,420. Patented Nov. 28,1871.

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y@ 76) 74 'MMMW TENT OFFICE.

WILLIAM WELLS REYNOLDS, OF BRANDON, VERMONT.

IMPROVEMENT IN MACHINES FOR GRADUATING SCALE-BEAMS.

Specification forming part of Letters Patent No. 121,420, dated November28, 1871.

To all whom it may concern:

Be it known that I, WILLIAM WELLs REY- NOLDS, of Brandon, in the countyof Rutland and State of Vermont, have invented a new and valuableImprovement in Machine for Making Scale-Beams; and I do hereby declarethat the following is full, clear, and exact description of theconstruction and operation of the same, reference bein ghad to theannexed drawing making a part of this specification, and to the lettersandV figures of reference marked thereon.

Figure l of the drawing is a representation of a central verticalcross-section of the machine. Fig. 2 is a top view of the same. Fig. 3is a side view. Fig. 4 is a side view. Fig. is a detached view ofcylinder k and spring n, hereinafter described. Fig. 6 is a detail view.

The nature of my invention consists in the construction and arrangementof a machine for making scale-beams and notching weight-masters7 beams',as will be hereinafter more fully set forth.

Arepresents the bed of my machine, provided with a slidetable, B, movedby a screw, C, which is turned by a ratchet-and-crank motion, E,attached to the arbor D, which receives the power. This arbor D issituated at one side of the machine, and is elevated so as to be on alevel with the tool-bar G over the Work on the table B, where the workto be done is secured, thus enabling me to transmit the power directlyto the tool-bar G from the arbor, dispensing with gear or othermachinery, thereby making the whole less complicated, and, consequently,more durable, and doing the work more accurately. The tool-bar G, whichhas the cutter a attached to one side, is grooved out on the under sideto admit of a rod or bar, b, passing across the table withoutinterfering with the work. At each end and on each side of this grooveis an inclined plane, x, resting on bent or elbow-levers d d, to whichthe rod or bar b is attached, so that when the tool-bar is propelled byits propellinglever it is depressed gradually by the springs e e, makingthe marks deeper as it proceeds. At the back end of the' tool-bar G is apropelling-lever, f, the end of which runs on an eccentric, h, on thepower-arbor D, the other end engaging with a cylinder, k, in the end ofthe toolbar, said cylinder having slots or grooves cut in its sides, ofvarious depths, causing the different lengths of dots or marks on theside of the scale-beam. The propelling-lever is supported by anoscillating block, i, through which it passes, said oscillating bl'ockbeing held in position by a slide-rest, m. ported in the middle givesthe end which engages with the cylinder k in the end of the toolbar anup-and-down motion sufficient to turn the cylinder, so that the nextmotion of the lever will engage with said cylinder in the next slot orgroove, giving a different length, dot, or mark. I also place a spring,n, on top of the tool-bar in such a position as to engage with saidcylinder and hold it at rest when the propelling-lever is disengaged.The bent or elbow-levers d d, under the tool-bar, are attached toupright guards H H, through which the tool-bar passes. These levers arefor the purpose of raising said toolbar from the work when the table andWork is moved by the screw O, said levers being worked by means of therod or bar b running inside the tool-bar G back to the power-arbor D,Where it engages with an eccentric, p, and accomplishes the objectdesired, the tool-bar at the same time being` forced backV by a spring,I, ready for another motion from the propelling-leverf. To notchweight-masters or other Wrought-iron beams the tool-bar G is removed. Atthe end of the power-arbor D is a cam, s, Which engages with the shortend of a lever or tool-handle, J, the long end of which is provided witha cutter, t, suspended over the bar to be notched, and raised by meansof the cam S. It is thrown back upon the beam by the use of springs Kwith force sufflcient to cut the notch the required depth. I also usethe same cutter in the same position to mark the sides oftheweight-masters beams.

I claim as my inventionl. The adjustable bearing m, with oscillatingblock i, in combination with the lever f, eccentric h, notched cylinderk, and tool-bar G, substantially as described.

2. The tool-bar G, grooved on its under side and provided with theinclined planes x fr, in combination with the bent or elbow-levers d dand bar b, substantially as specified.

In testimony that I claim the above I have hereunto subscribed my name'm the presence of two witnesses.

WILLIAM WELLS REYNOLDS.

Witnesses:

H. C. GOPELAND,

E. H. GRIsWoLD. (4.2)

The propelling-lever being sup-

